In an attempt to understand the antiproliferative effects of progestins in endometrial cancer, we have examined the effects of the potent progestin, medroxyprogesterone acetate (MPA), on the cell proliferation and the expression of transforming growth factor (TGF) alpha and beta genes in human endometrial adenocarcinoma cell lines. The two cell lines used were Ishikawa, var 1, and HEC-50. In ad...

OBJECTIVE To compare the effectiveness of nonsurgical abnormal uterine bleeding treatments for bleeding control, quality of life (QOL), pain, sexual health, patient satisfaction, additional treatments needed, and adverse events. DATA SOURCES MEDLINE, Cochrane databases, and Clinicaltrials.gov were searched from inception to May 2012. We included randomized controlled trials of nonsurgical tre...

Steroid modulation of cognitive function has focused on estrogen (E(2)), but progestins naturally co-vary with E(2) and may also influence cognitive performance. Spatial performance in the object placement task over endogenous hormonal states in which E(2) and progestins vary, and when E(2) and/or progestins were administered, was examined. Experiment 1: Rats in proestrus or estrus had signific...

Numerous forms of estrogens and progestins are utilized for the treatment of menopausal complaints and associated conditions that occur temporally. Although known to be different with respect to molecular structure, receptor affinity, metabolism, and other physiological traits, most have been treated as if they were clinically identical. The majority of these hormone preparations, commonly refe...

Progestins bind to the progestin receptor (PR) isoforms, PR-A and PR-B, in brain to influence development, female reproduction, anxiety, and stress. Hormone-activated PRs associate with multiple proteins to form functional complexes. In the present study, proteins from female mouse hypothalamus that associate with PR were isolated using affinity pull-down assays with glutathione S-transferase-t...

BACKGROUND Epidemiologic, animal, and human data suggest that progestins are potent endometrial cancer preventive agents. In the ovarian surface epithelium, progestins have been hypothesized to confer a cancer preventive effect via apoptosis and modulation of transforming growth factor-beta (TGF-beta). Given that the ovarian epithelium and endometrium share a common embryologic origin and simil...

7α-methyl-19-nortestosterone (MENT) is an androgen with potent gonadotropin inhibitory activity and prostate-sparing effects. These attributes give MENT advantages over testosterone as a male contraceptive, but, as in the case of testosterone, a partial dose-dependent suppression of spermatogenesis has been observed. Combination of testosterone or MENT with synthetic progestins improves the rat...

Vaginal rings releasing antiretrovirals - either alone or in combination with contraceptive progestins are being developed for contraception and prevention of human immunodeficiency virus (HIV) transmission via vagina. However, hormonal contraceptives associated numerous side effects contraindications, many women interested using hormone-free contraceptives. The aim this project is to develop m...

•Progesterone therapy is a commonly used alternative to surgical management for women with endometrial cancer who desire fertility preservation.•Prior research suggests that progestins may contribute to breast tumorigenesis.•We report a patient diagnosed with progesterone receptor positive breast cancer during hormonal treatment of endometrial cancer.